0 0 0 0
2 0 0 0
2 2 0 0
0 2 0 0
0 0 0 0
0 0 0 0
0 2 2 0
2 2 0 0
0 0 0 0
2 0 0 0 
2 2 0 0 
0 2 0 0
0 0 0 0
0 0 0 0
0 2 2 0
2 2 0 0 
